validate requested key length in kdf_pbkdf1_do_derive

[openssl.git] / CHANGES.md

diff --git a/CHANGES.md b/CHANGES.md
index 7241aced6101be918d541b623a0ec1520677c7f4..11f4d6a8d89ee3bcecf6f74e75971ee37d973b94 100644 (file)
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -24,7 +24,19 @@ OpenSSL 3.1
 
 ### Changes between 3.1.4 and 3.1.5 [xx XXX xxxx]
 
- * none yet
+ * Fix excessive time spent in DH check / generation with large Q parameter
+   value.
+
+   Applications that use the functions DH_generate_key() to generate an
+   X9.42 DH key may experience long delays. Likewise, applications that use
+   DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check()
+   to check an X9.42 DH key or X9.42 DH parameters may experience long delays.
+   Where the key or parameters that are being checked have been obtained from
+   an untrusted source this may lead to a Denial of Service.
+
+   ([CVE-2023-5678])
+
+   *Richard Levitte*
 
 ### Changes between 3.1.3 and 3.1.4 [24 Oct 2023]
 
@@ -19868,6 +19880,7 @@ ndif
 
 <!-- Links -->
 
+[CVE-2023-5678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5678
 [CVE-2023-5363]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5363
 [CVE-2023-4807]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-4807
 [CVE-2023-3817]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3817